This is an aluminum Reproduction of the largest commercially produced Classic cast iron Big-Bang® 16F Siege Field Gun that was manufactured from 1917 to 1935. It is now reproduced and made of all aluminum from the original 1917 patterns and dies. It is breech loading and has ammunition storage in the rear powder box. You can add a piece of history to your collection with this classic. Dimensions are; 23"Long x 6 ½"Wide x 6 ½" High and weighs 4 ½ lbs. New Military Green version with red wheels